{{#each (trier @root.competences) as |competence key|}}
  {{#if (eq competence.system.categorie 'draconic')}}
  <option value="{{competence.name}}">{{competence.name}}</option>
  {{/if}}
{{/each}}
<option value="O/H/N/T">Oniros/Hypnos/Narcos/Thanatos</option>
<option value="O/H/N">Oniros/Hypnos/Narcos</option>